The switching power for driving the stepper - motor . furthermore , i take part in the vgt performance examination , from which i obtains the data map of vane position and boost pressure with economic rules 参与vgt性能试验,通过试验数据的分析,以经济性原则得到了增压压力脉谱图和最佳叶片转角位置脉谱图。
Leaving the rated load , especially with low load and free running operation , ihe efficiency of turbocharger and ratio boost pressure decrease , leading to the shortage of air in cylinders and worsening of combustion , and the economic , power and exhaust performances deteriorate 当偏离标定点,尤其在低负荷和空转工况工作时,增压器效率降低,增压压力明显下降,导致气缸供气不足,缸内燃烧不良,柴油机的经济性能、动力性能和排放性能将严重恶化。